I've been researching the internet and found nothing that can explain me how I do to toggle the action of a button in Java ...
Example:
I have a button that when I tighten it I want it to change the texts of 2 labels, and when I press it again I want it to change the texts again ... And that it will do it as I squeeze. >
Do you understand?
Now how do I do this?
ActionListener interface) and you want to switch between one and the other, you can create a generic third class that also implements ActionListener and perform this alternation between actions. An example implementation would be:
class Alterna implements ActionListener {
private ActionListener a;
private ActionListener b;
private boolean primeira = true;
public Alterna(ActionListener a, ActionListener b) {
this.a = a;
this.b = b;
}
pubilc void actionPerformed(ActionEvent e) {
if ( primeira )
a.actionPerformed(e);
else
b.actionPerformed(e);
primeira = !primeira; // Inverte, pra da próxima vez executar a outra ação
}
}
Then you just create your two actions, usually then create an instance of that class and assign this instance as a button listener:
meuBotao.addActionListener(new Alterna(a, b));
Note: If you "change the text of 2 labels" you mean "pass the text from label 1 pro label 2 and vice versa", so you do not need two actions - one is enough! But if you meant to "pass the text from label 1 to X and from 2 to Y, on the other click from label 1 to Z and from 2 to W", then this approach is a possible way to do it. >
(other would be for example to use a ActionListener only and implement the same logic in it)